Improvement in sewing-machines



, H w FULLER Sewing Machine. l N5 58,245. Patented sept. 25, 1855.

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UNITED STATES PATENT OEEIcE.

HENRY WM. FULLER, -OF BROOKLYN, NEW YORK, ASSIGNOR TO BRUEN MANUFACTURING OOMPAN IMPROVEMENT IN SEWING-MACHINEVS.

Specification forming part of Letters Patent No. 58,2115, dated September 25, 1856.

To all whom it may concern:

Be it known that I, HENRY WILLIAM FUL- LER, of Brooklyn, Kings county, and State of New York, have invented a new and useful Improvement in Sewing-Machines and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part ot' this specification, and the letters of reference marked thereon, in which the same letter represents the same thing in each gure.

Figure l is a bottom view of my improved attachment; Fig. 2, a front view thereof.

A is the cloth-plate; B, the frame; O, the cam-lever D, the thread-carrier lever; E, the stud connecting these levers, and on which they turn; F, the spiral spring; G, the eccentric' regulating the throw of lever D; H, the thread-carrier; I, the stud on which the threadv carrier turns; K, the projection on the end of lever E; L, the under thread-carrier tension. My invention relates to the attachments to sewing-machines patented to John J. Sibley March 29, 1864, and June 13, 1865, by which the double loop, or three orv more threadstitches, maybe made by Wheeler & Wilson machines; and it consists in so combining the attachment with the cloth-plate that the necessity of its ring-slide is dispensed with and the ordinary ring-slide of Wheeler & Wilson machines employed instead. This is accomplished by securing frame B of the attachment permanently to cloth-plate A in any way preferred, so that thread-carrier H shall be in a proper relative position to the needle. The feed-cam of the machine 'operates lever O, which actuates lever D and throws out threadcarrier H after its loop is around the loop of needle-thread, and spring F returns it to spread the loop for the needle in its descent to pass through, the operation being the same as described in those patents.

' When a three ortmore thread stitch is made the bobbin, of course, is filled.

Fra-me B may be dispensed with by altering stud E so as to secure the proper operation of the levers, and attaching thread-carrier H directly to the cloth-plate. The result will be the same-viz., a greater simplicity and surer operation of the parts, and dispensing with the ring-slide of the attachment to take the place of the ordinary ring-slide of Wheeler 8a Wilson machines, which is rst removed in the application as made by Sibley in order to secure the attachment in its place.

There is also a great convenience in changing from the three-thread to the ordinary lock stitch, and vice versa, without unthreading `the threadcarrier. All that is necessary is to throw it out of position, as shown by the red lines of Fig. 1.

What I claim as my invention, and desire to secure by Letters Paten t, is-

The combination of the attachment described 'with the cloth-plate, needle, rotating hook,

bobbin, ring-slide, and other operative parts of a Wheeler St Wilson sewing-machine, constructed and operating together substantially as and for the purposes set forth.

HENRY w. FULLER.

Witnesses:

GEO. H. CoLLINs, MELVILLE Brees. 

